First commit

.gitignore

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+
+# Created by https://www.gitignore.io/api/rust,macos,jetbrains+all
+# Edit at https://www.gitignore.io/?templates=rust,macos,jetbrains+all
+
+### JetBrains+all ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+# JetBrains templates
+**___jb_tmp___
+
+### JetBrains+all Patch ###
+# Ignores the whole .idea folder and all .iml files
+# See https://github.com/joeblau/gitignore.io/issues/186 and https://github.com/joeblau/gitignore.io/issues/360
+
+.idea/
+
+# Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-249601023
+
+*.iml
+modules.xml
+.idea/misc.xml
+*.ipr
+
+# Sonarlint plugin
+.idea/sonarlint
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Rust ###
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
+Cargo.lock
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# End of https://www.gitignore.io/api/rust,macos,jetbrains+all

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>stringqb</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+	</natures>
+</projectDescription>

Cargo.toml

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+[package]
+name = "stringqb"
+version = "0.1.0"
+authors = ["Timothy Warren <twarren@nabancard.com>"]
+edition = "2018"
+categories = ["database"]
+
+[dependencies]
+serde_json = "1.0.39"
+
+[dependencies.postgres]
+version="0.15.2"
+features=["with-serde_json"]
+optional=true
+
+[dependencies.rusqlite]
+version="0.17.0"
+features=["chrono","serde_json","url"]
+optional=true

src/drivers.rs

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+pub trait DatabaseDriver {
+    fn query(&self, query: &str) -> Result<(), ()>;
+}
+
+pub struct Postgres;
+pub struct SQLite;
+
+
+impl DatabaseDriver for Postgres {
+    fn query(&self, _query: &str) -> Result<(), ()> {
+        Ok(())
+    }
+}
+
+impl DatabaseDriver for SQLite {
+    fn query(&self, _query: &str) -> Result<(), ()> {
+        Ok(())
+    }
+}
+

src/lib.rs

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+/// # StringQB
+///
+/// A query builder using mostly strings, with methods following common SQL syntax
+
+mod drivers;
+mod query_builder;

src/query_builder.rs

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+use std::any::Any;
+use std::collections::HashMap;
+
+use crate::drivers::DatabaseDriver;
+
+#[derive(Debug)]
+enum QueryClauseType {
+    AndGroupStart,
+    GroupEnd,
+    GroupStart,
+    Like,
+    OrGroupStart,
+    Where,
+    WhereIn,
+}
+
+#[derive(Debug)]
+struct QueryClause {
+    clause_type: QueryClauseType,
+    conjunction: String,
+    string: String,
+}
+
+#[derive(Default, Debug)]
+struct QueryState {
+    select_string: String,
+    from_string: String,
+    set_string: String,
+    order_string: String,
+    group_string: String,
+
+    // Keys for insert/update statement
+    pub set_array_keys: Vec<String>,
+
+    // Order by clause
+    order_array: HashMap<String, String>,
+
+    // Group by clause
+    group_array: HashMap<String, String>,
+
+    // Values to apply to prepared statements
+    pub values: Vec<String>,
+
+    // Values to apply to where clauses in prepared statements
+    pub where_values: Vec<String>,
+
+    limit: u32,
+
+    offset: u32,
+
+    // Query components for complex selects
+    query_map: Vec<QueryClause>,
+
+    // Query components for having clauses
+    having_map: Vec<QueryClause>,
+}
+
+impl QueryState {
+    pub fn new() -> QueryState {
+        QueryState::default()
+    }
+}
+
+#[derive(Default, Debug)]
+pub struct QueryBuilder {
+    state: QueryState,
+    driver: Option<DatabaseDriver>,
+}
+
+impl QueryBuilder {
+    pub fn new() -> QueryBuilder {
+        QueryBuilder {
+            state: QueryState::new(),
+            driver: None,
+        }
+    }
+
+    pub fn set(mut self, key: String, value: String) -> Self {
+        self.state.set_array_keys.push(key);
+        self.state.values.push(value);
+
+        self
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn set_key_value() {
+        let builder = QueryBuilder::new();
+        let builder = builder.set("foo".to_string(), "bar".to_string());
+
+        assert_eq!(builder.state.values, vec!["bar"]);
+    }
+}